Increase or Decrease Size of ggplot2 Points in R (2 Examples)
In this post, I’ll explain how to increase or decrease the size of points in a ggplot2 scatterplot in the R programming language.
Preparing the Examples
data(iris) # Loading example data head(iris) # Sepal.Length Sepal.Width Petal.Length Petal.Width Species # 1 5.1 3.5 1.4 0.2 setosa # 2 4.9 3.0 1.4 0.2 setosa # 3 4.7 3.2 1.3 0.2 setosa # 4 4.6 3.1 1.5 0.2 setosa # 5 5.0 3.6 1.4 0.2 setosa # 6 5.4 3.9 1.7 0.4 setosa |
install.packages("ggplot2") # Install & load ggplot2 library("ggplot2") |
ggplot(iris, # Default ggplot2 scatterplot aes(x = Sepal.Length, y = Sepal.Width)) + geom_point() |
Example 1: Decreasing Point Size in ggplot2 Graphic
ggplot(iris, # ggplot2 scatterplot with tiny points aes(x = Sepal.Length, y = Sepal.Width)) + geom_point(size = 0.25) |
Example 2: Increasing Point Size in ggplot2 Graphic
ggplot(iris, # ggplot2 scatterplot with large points aes(x = Sepal.Length, y = Sepal.Width)) + geom_point(size = 5) |
Related Articles & Further Resources
You may have a look at the following R programming language tutorials. They illustrate topics such as graphics in R, ggplot2, and plot legends: